An economic theory in international trade that is based on the assumption that there are only two countries trading two goods
a. is useless, since the real world has many countries trading many goods.
b. can be useful only in situations involving two countries and two goods
c. can be useful in the classroom but is useless in the real world
d. can be useful in economists understand the complex world of international trade involving many countries and many goods

Calculate the required rate of return for climax inc., assuming that (1) investors expect a 4.0% rate of inflation in the future, (2) the real risk-free rate is 3.0%, (3) the market risk premium is 5.0%, (4) the firm has a beta of 2.30, and (5) its realized rate of return has averaged 15.0% over the last 5 years. do not round your intermediate calculations.

Google started as one of many internet search engines, amazon started as an online book seller, and ebay began as a site where people could sell used personal items in auctions. these firms have grown to be so large and dominant that they are facing antitrust scrutiny from competition regulators in the us and elsewhere. did these online giants grow by fairly beating competition, or did they use unfair advantages? are there any clouds on the horizon for these firms -- could they face diseconomies of scale or diseconomies of scope as they continue to grow? if so, what factors may limit their continued growth?

Describe how to write a main idea expressed as a bottom-line statement